Paper-fastening device



Dec. 14 1926. 1,610,632

s SvENsoN PAPER FASTENING DEVICE Original Filled Feb. 4. 1924 4Sheets-Sheet l Fij, l

Z726 zv- Ja TTORNE S Dec. 14,1926. 1,610,632

s. svENsoN PAPER FASTENING DEVICE Original Filed Feb. 4. 1924 4Sheets-Sheet Fig ATTO NEY Dec. 14, 1926. 1,610,632

s. SVENSON PAPER FASTENING DEVICE original Filed Feb. 4. 1924 4sheets-sheet 5 IN VEN TOR.

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ATTORNEYS.

Dec. 14 1926.

S. SVENSON PAPER FASTENING- DEVICE Original Filed Feb. 4, 1924 4Sheets-Sheet 4 INVENTOR.

s EW ATTORNEYS',

Patented Dec. 14, 1926.

UNITED .STATES- PATENT oFFlcE.

SVEN SVENSON, OF FOND DU LAC, WISCONSIN, ASSIGNOR OF ONE-HALF TO MICHAELK. REILLY, 0F FOND DU LAC, WISCONSIN'.

PAPER-FASTENING DEVICE.

Application illed February 4, 1924, Serial No. 690,397. Renewed lay 5,1926.

This invention relates to improvements in paper fastening devices.

It is the primary object of this invention to provide a novel andeffective paperfastening device adapted to unite a multipliclty ofsheets of paper by means of wire staples cut and formed by the machinein the course of its operation.

More specifically stated it is one of the objects of this invention toprovide, in a machine of this character, a retractible anvil over whichthe staple may be formed and which carries a portion of the Wire feedingor advancing mechanism whereby the retraction thereof, which isnecessary to permit of the driving of the staple, may be utilized in theengagement for advance of new lengths of wire into the machinery withoutadditional motion transmitting linkage or other complicated mechanism.

It is a further object of this invention to provide in compact form amachine of the character described in which the staple will be disposedtransversely of the work. Various machines heretofore constructed havebeen designed to feed the staple to the work in such a manner that thestaple will extend longitudinally thereof` but such a disposition of thestaple has obvious disadvantages in that it does not bind sheets asfirmly together as if the strain tending to separate such sheets were.applied simultaneously to both legs of the staple. I am also aware thatmachines have been made to feed the staple transversely of the Work butsuch machines have heretofore been awkward and bulky and it is one ofthe important objects of this invention to provide a machine in whichthe wire feeding and staple forming mechanism will be mounted in ,anarrow and compact form, the wire being preferably fed longitudinally ofthe work initially and then guided to move transversely thereof past thestaple forming die.

It is a further purpose of this invention to provide novel andsimplified feeding devices for the wire from which the staples areformed and to otherwise simplify, cheapen and render compact, mechanismof this general character.

ln the drawings:

Figure 1 is a front elevation of a device embodying this invention andadapted to be held in the hand during use.

Figure 2 is a side elevation of the device shown in Figure 1.

Figure 3 is an `enlarged longitudinal vertical section of the deviceshown in Figures 1 and 2.

Figure 4 is a section taken on line 4-4 of Figure 3.

Figure 5 is a section corresponding to Figure 3 and illustrating thedevice as it appearsat the completion of the paper fastening operation.

Figure 6 is a detail sectional view `taken on line 6 6 of Figure 5.

Figure 7 is a detail sectional view taken on line 7--7 of Figure 6.

Figure 8 is a section taken on line 8-8 of Figure 3.

Figure 9 is a detail view in side elevation of the forming and cuttingdie illustrated in Figure 8.

Figure 10 is a section taken on line 10-10 of Figure 8.

Figure 11 is a sectional view corresponding to Figure 8 and showing theparts in a position wherein a staple has been formed, ready forpenetration of the paper.

Figure 12 is a sectional view similar to Figures 8 and 11, andillustrating the completely formed staple after it has penetrated thepaper and is being clenched on the anvil.

Figure 13 is a plan view of a desk machine embodying the principle ofthe device illustrated in Figures 1 to 12.

Figure 14 is a side elevational view of the device illustrated in Figure13.

Figure 15 is a view in side elevation illustrating the parts of themachine shown in Figures 12 and 13 when such parts are in their normallyretracted position.

Figure 16 is a view corresponding to Figure 15 and illustrating theparts in a partially advanced position.

Figure 17 corresponds to Figures 15 and 16 and illustrates the parts atthe completion of the staple forming and clenching stroke.

Figure 18 is a sectional view taken on line 18-18 of Figure 15.

Figure 19 is a sectional view taken on line 19-19 of Figure 16 andillustrating the guide in conjunction with other mechanism shown inFigure 16.

Figure 2O is a detail and sectional view taken on line 20-20 of Figure14.

Figure 21 is a detail View showing in side All) elevation a portion ofthe machine opposite to the portion exposed in Figure 14.

Figure 22 is a section taken on hne 22--22 of Figure 17.

Like parts are identified by the same reference characters throughoutthe several views.

'lhe deviceillustrated in Figures 1 to 12, inclusive, is a tool adaptedto be held in the hand and to be operated in the manner in which apairof pliers are used. This tool will be first described.

The handle members or grips comprise levers 2l and 22 which may beformed of sheet metal to provide spaced arms 23 upon lever 2l, and arms24 upon lever 22. Corresponding arms of each lever are opera tivelypivoted by means of a transverse bolt or rivet 25.

The operating parts of the tool are principally sup orted and motivatedby means of a pair o normally spaced frame members which willhereinafter be termed jaws. The upper jaw 26 is pivotally connected bythe transverse bolt 27 with the spaced a'rms 24 on" level' 22. The lowerjaw 28 is similarly connected by bolt 29 with the spaced arms 23 oflever 21. Each of said jaws comprises a channel shaped member, theflanges of which are provided with longitudinally extending slots 30.The slots of member 28 receive a cross pin 31 in lever 22, and the slotsof jaw 26 receive a similar cross pin 32 in lever 21. The arrangement issuch as to ensure that the jaws willhave parallel motion when the handlegrips or levers 2l and 22 are compressed in such a Way as to move jaws26 and 28 together.

The sheets of paper or other material which are to be fastened togetherin the use of this device are introduced into a slot 36 in the end ofjaw 28 immediately above an anvil 37 which projects forwardly from thelower portion ot' said slot. Intermediate of its sides the said anvil isprovided with a groove or depression 38 which is arcuately formed in themanner most clearly shown in Figure 7. As will hereinafter be explained.this groove receives and upsets the ends of a wire staple toward thecenter of the anvil as such a staple is being forced through the paperpieces supported on the anvil.

The 'wire feed.

'Within the channel shaped jaw 28 there is a reciprocable slide 4()which is guided for longitudinal movement by means of slots 4l and 42which receive, respectively, the the pivot pin 29 and a speciallyprovided transverse pin 43 in the jaw. In its upper portion this slideis recessed at 44 to re ceive a link 45 which connects it loosely withjaw 26. The loose connection is affected through the medium of slots 46and 47 through which pass, respectively, the transverse pin 48 of jaw 26and the transverse pin 49 of the slide. The arrangement is such that forreasons hereinafter to be mentioned, the jaw will have a limiteddownward movement before slide actuation commences, and

will thereafter reciprocate Said slide rearwardly. When the handles 21and 22 are released by the operator to an extent suflicient to permitthem to open, they will immediately assume their normal position, asindicated in Figure 3, due to the tension of a spring 50'which isconnected with pivot pin 27 and with the transverse pin 32. In thecourse of separating jaws 26 and 28, spring 50 will also serve toadvance slide 40 to the position in which it appears in Figure 3. In thecourse of such advance there will he as much lost motion, due to theslots 46 and 47 in link 45, as occurred during the retraction orrearward movement of the slide.

The material of which jaw 28 is composed is extended rearwardly at 52and is formed with upstanding ears 53 for the support of a smalltransverse shaft 55 upon which the spool 56 of wire is rotatable. Theshaft 55 may conveniently comprise a screw in order to facilitate thereplacement of spool 56 when said spool has been emptied.

An upright or post 57 supported from the portion 52 or jaw 28 carries aclutch device 59 for the operative engagement of wire 60 led from thespool 56. The clutch 59 comprises a tube 62 having an axial opening 63with a funnel shaped inlet portion 64, whereby to take care of wire 60without undue friction, regardless of the extent to which spool 56 maybe filled. The axial bore or opening 63 of tube 62 is traversed by adiagonal slot 65 within which a small roller 66 is movable. This rollercomprises the actual clutch element. For simplicity of construction.this may be groovcd periphorally at 67 adjacent each of its ends toreceive the helical spring 68 threaded exteriorly upon tube 62 andfinding a bearing in groove 67, for the purpose not only of urging saidroller toward the bottom of its slot but also for the purpose ofcentering said roller with respect to said tube against lateraldisplacement therefrom. The spring is seated at its far end against aplate 70 which serves to connect tube 62 with post 57, the post beingslotted to receive the plate, which may be welded or soldered therein.The roller 66 comprises the real clutch element of the device. It ispressed into frictional engagement with wire 60. When the wire movesforwardly to the hole in tube 62 it will tend to cause roller 66 to moveforwardly against the compression of spring 68. Any .such movement ofthe roller, however, tends to cause said roller to move outwardly in theinclined slot 65 and thereby to relieve the wire for free movement. If,however, the wire tends to move oppositely throu,f, ;fh tube 62 it willtend to car1 y.with it roller 66 which is maintamed 1n frictionalengagement with the wire by means of the spring. Any such movement ofthe roller produces a wedgmg action 1n conJunction with the walls of theslot 65, thereby securing wire against any rearward movement.

The reciprocable slide 4() carries a tubular guide 72 having a rearwardportion which is substantially longitudinal and to which is connected aclutch device 73 similar in all particulars to the clutch device 59which has previously been described. Upon the occasion of relativemovement between clutch device 73 and wire 60, whereby the wire tends toadvance or move forwardly with respect to clutch device 73, said devicewill readily permit such movement. If, however, any relative movementoccurs in which the wire (SO tends to move rearwardly with respect todevice 73, the device 73 w ill engage the wire with a wedging action toovercome such tendency. Thus, when the slide 40 is reciprocablerearwardly it will move freely with respect to wire 60, the

wire being held against a similar rearwardly movement by means of clutchdevice 59. When the slide 40 is again moved forwardly, clutch device 73will engage the wire and clutch device 59 will permit the wire toadvance. Thus, all relative movement between guide 72 and wire 60 occursduring the rearward reciprocation of slide 40. lVhen slide 40reciprocates forwardly the clutch device 73 ensures that the portion ofthe wire within guide 72 will move unitarily therewith.

The guide 72 is curved at 74 outwardly beyond the contines of jaw 28 andis thereafter curved inwardly at 75 adjacent the fiout of theI tool to apoint of termination at 7G in which the guide is directed almosttransversely of the tool but at a slight angle forwardly of anabsolutely transverse line. By means of this guide, the wire carried byspool 5G and fed through the interaction of clutch devices 59 and 78, isdirected transversely of the tool to an opcrative position with respectto a mandrel, forming presses, and a punch which are hereinafter to bedescribed.

o-operating with the guide tube 72 are the walls of a longitudinal slotin a U-shaped plate 81, the legs of which are secured to the sides ofthe channeled jaw member. 28 and the bow-shaped portion of which extendsaround the front of the jaw member. as best shown in Figure 4. It isthis U-shaped plate which co-operates with anvil member 37 to providethe recess 36 into which are thrust the paper sheets to be fastenedtogether.l The walls of slot 80 definitely fix the position of wire 60and are of sufficient extent to retain said wire even when thereciprocable feeder is in its most and 78 and the degree ofreciprocation of slide 40 that no stop is really necessary.

The mandrel.

When the wire 60 is in the position indicated in Figure 3 it rests upona mandrel 82 formed at the forward end of slide 40 and movabletherewith. The top of the mandrel is at a height'corresponding to thelower rmargin of slot 8O so that the wire, as it is fed through saidslot, will rest directly upon the mandrel.

In order to position the wire accurately upon the mandrel directlybeneath the forming die hereinafter to be described, I connect to anintermediate portion of the U-shaped plate 81 a vertically extendingstop member 84 which is received within a corresponding slot 85 in themandrel. The fact that the mandrel thus extends forwardly upon eitherside of the stop block makes it impossible for wire lodged against saidblock ever to become displaced over the end of the mandrel by theinitial downward l movement of the forming die. This eXtension of themandrel fully ensures that the mandrel will remain positioned beneaththe wire during the initial rearward movement of slide 40 and until theforming die has had suicient time to complete the forming operation.

Fowm'ng die.

The forming die comprises a vertically reciprocable member which is bestshown in detail in Figures 8, 9, and 10. The die proper comprises a pairof spaced legs 86 and 87 which are preferably provided with slighttransverse grooves at their lower ends to ensure accurate contact withthe wires. Both legs are also provided on their inner faces withvertical grooves 88 within which the punch member hereinafter to be described is slidable. The ends of grooves 88 communicate with thetransverse grooves which have just been described, and which are bestshown in Figure 9 at 89.

The 1egs86 and 87 are connected by ay transverse web 90 which isrearwardly olfset from the plane of grooves 88 so as not to interferewith the free vertical movement of the punch. The portions 91 of thelegs, which are immediately adjacent web HTI lun

90 upon either side thereof, are guided against longitudinaldisplacement in the course of their `vertical reciprocation by means o'tslots 92 cut in the opposite walls or` flanges of the channel-shapedupper jaw 26 of the device. The arms 93 and 94 which extend upwardlyfrom portions 91 of arms 86 and 87 are disposed exteriorly of theflanges of jaw 26 and are shouldered at 95 to receive the downwardcompression of a Hat spring 96 mounted on top of the upper jaw.- Atransverse pin 97 connects the extremities ot arms 93 and 94 andcontines the spring against shoulders 95, as shown.

Provision is also made upon the lower jaw for guiding the forming diefor vertical movement. Such provision may conveniently consist in theupsetting of portions ot the U-shaped plate 81, which has previouslybeen described. Vertical cuts may be made in each leg of said plate at aspaced interval of approximately the thickness of the legs 86 and 87 ofthe forming die. The tongue of metal between each pair of cuts bearsupon the exterior surface of the adjacent leg of the die. The cornersbordering on said cuts upon either side of said tongue are then bentinwardly, as best shown at 98 in Figure 6, thereby confining the legs ofthe die against longitudinal displacement.

It will be understood that the legs 86 and 87 of the forming diestraddle the mandrel 82 during the forming operation. Furthermore, leg86 is immediately adjacent that portion of plate 81 in which the slot 80is located. Thus, the initial downward movement of the forming die willcause leg 86 to co-operate with the wall of slot to shea-r that portionof wire 60 which projects beyond said slide. Thereby a blank will beformed'- which will rest upon the mandrel 82 and will be engaged in thetransverse grooves 89 of legs 86 and 87. The continued downward movementof said legs bends about the mandrel the projecting ends of the blank60, such ends being received in the grooves 88 of the die. wire so bentwill take the form of a staple.

The pressure required for the shearing and forming operatlon justdescribed above is greater than can be furnished by spring 96, althoughsuch spring tends to transmit with resilient yielding the downward forceof jaw 26 to the forming die. In order to relieve the spring 96 duringthe wire cutting and forming operations, I prefer to utilize aninterposed member 100 which is ,normally held in abutment against thepunch member, hereinafter to be described,`

by means of a compression spring 101 seated at its rear end against atransverse member 102 supported within jaw 26. The motion transmittingblock 100 is connected with a longitudinally reciprocable slide 103carry- Ultimately the ing at its rear end a downwardly extending linger104. This finger is spaced slightly rearwardly of the cross pin32,'whercby to be engaged by said pin after the initial closing movementof jaws 26 and 28 has occurred. Member 100 bears at its lower end uponthe upper margin of the web of the forming die, thereby serving totransmit positively to the die pressure of jaw 26 during the cutting andforming operations. The-finger 104, however, vis so positioned withreference to the cross pin 32 that at the completion of the wire cuttingand forming operations the finger 104 will contact with said pin andwill be drawn rearwardly thereby. As a result, the block will also bedrawn rearwardly against the compression of spring 101 and will nolonger contact with the upper margin of web 90. Thereafter the formingdie will be maintained in resiliently yieldable pressure contact withthe 'paper on anvil 37 through the action of spring 96.

T he punch.

The punch comprises a thin strip of metal having a vertically disposedportion 105 riding in the grooves 88 of the forming die and integrallyconnected at its upper end with a longitudinally extending portion 106which is riveted or otherwise connected with the horizontal web ot jaw26. In other words, the portion 106 otl the metal strip above referredto serves merely to connect to jaw 26 the vertical strip 105, whichcomprises the punch proper.

rlhe punch 105 terminates, in the retracted position of the parts, withits lower extremity spaced t'or a certain distance above wire 60 in themanner clearly indicated in Figures 3 and 8. Tt will be understood thatthe grooves 88. which serve to receive the side margins ot the punch andto retain the punch and the forming die in their respective relativepositions, have the .further function ot receiving the wire during thestaple forming or bending operation. Therefore the bottom extremity ofpunch 105 is disposed at a suiiicient height, in Figure 3, to enable-this bending operation to occur and be completed at the time the punchcontacts with the upper end of the staple. At this time also the slide40 will have moved mandrel 82 out of the completed staple, therebyleaving the staple free for downward movement. guided by grooves 88. Thelegs 86 and 87 of the forming die will be in contact with the paper, andwill thereby serve to direct the ends of the staple vertically throughthe paper under pressure of punch 105. As such ends encounter the anvil37 they will be guided inwardly by the arcuate groove 38 1n the anviland, in the continued downward movement of the punch, will be pressedflat and clenched to bind firmly the paper sheets through which the4staple is passed.

Oper/'ation In order that the synchronous operation of the severalelements above described may be more fully appreciated, a brief summarywill be given. i

'lhe tool will be held in the hand with the handles 21 and 22 within theoperators grasp. The sheets of paper or other material to be fastened bythe tool will be introduced into the recess 36 above the'anvil 37. T heinterior mechanism of the tool will appear at this time in the positionindicated in Figures 3 and 4. Handles 21 and 22 are now pressed to movethe jaw members 26 and 40 to the position in which they appear in Figure5. The jaws 26 and 40 are maintained in parallelism through theparticular conlnection of handle levers 21 and 22 therewit i.

During the initial closing movement ofA jaws 26 and 40 the first thing.which occurs is the severing of that portion of wire 6() which extendsbeyond the slot P0. The severing operation occurs before the slide 40commences its rearward reciprocation, a certain amount of lost motionbeing possible by reason of the particular construction of link 45, aspreviously described. The wire blank cut bythe interaction of leg 86 ofthe die with the wall of slot 80 will rest on the upper surface of themandrel and will be confined against displacement by the transversegroove 89 in the legs of the die.

The continued closing movement of jaws 26v and 40 will result in thecommencement of the staple forming operation and will sin'iultaneouslyresult in the rearward movenient of slide 40. The commencement of thestaple forming operation is best illustrated in Figure 11. As the slidemoves rearwardly tht. mandrel 82 is withdrawn from the staple so thatthe completed staple is ultimately left free to be pressed downwardlythrough the paper by t e punch. Slide 40, as heretofore described, hasthe additional function of effecting the feed of wire from spool 56.This result is accomplished b v reason of the fact that the clutchdevice 59 secures the 'wire 60 against retrogressive movement, whereasclutch device 73 moves freely rearwardly with respect to the wire to thelimit of movement of the slide. Thus, the tubular guide 72 which iscarried by the slide is being moved with respect to the wire therein,and as a result, the wire bcgins. during the initial rearward movementof the slide. to project from the extremity 76 of the tube. In order toensure that the wire may not catch upon leg 86 of the forming die saidleg is preferably cut way, as indicated at 110, whereby to deflectrearwardly the end of the wire should such end contact therewith.

At the handles 21 and 22, near the completion of their stroke, the block100, which has theretot'ore been positively backing the forming die,will be retracted and the forming die will contact with the paper sheets111 upon the anvil. The continued movenient of jaw 26 is permitted bythe yielding of spring 96 while the forming die is maintained firmly incontact with the sheets. The punch or press 105 now contacts -with theupper portion of the staple and drives the staple, guided by the groovesin the forming die, into the paper where it is clenched by anvil 37 inthe manner already described. The commencement of the clenchingoperation is illustrated in Figure 12. Obviously, the completion of theclenching operation will leave the staple in a position to clamp firmlythe sheets of paper which have been penetrated by it. At this same timethe clutch device 73 carried by slide 40 will reach the rearmostextremity of its stroke and the Wire 60 will project slightly forwardlyfrom the tubular guide 72, in the manner best shown in Figure 6. Thefact that the tube is so positioned as to direct the wire forwardlyensures that the wire will, during the initial movement of the slide,not catch on anything which might tend to keep it from arriving at aposition immediately beneath the forming During the compression ofhandles 21 and 22 spring 50 has been placed under tension and, upon therelief of pressure upon said handles, the spring will serve to directthe parts to their normal positions. The clutch device 73 is now firmlyengaged with the wire, while clutch device 59 releases its hold topermit the wire to move freely therethrough. Thus, no relative movementoccurs between the wire and tubular guide 72 during the forward movementof the slide. The Wire is carried as indicated in Figure 6.

Ultimately the parts will all be restored to the positions indicated inFigure 3. The plunger 105 being positively connected with jaw 26 will beelevated therewith and, when spring 96 rests flat upon the u per portionof jaw 26, the forming die will positively retracted to its originalposition. As the forming die is raised, the returning slide 40 advancesthe mandrel 85 to a position between the legs 86 and 87 of the formingdie, the stop plate 84 being received within the slot 85 of the mandrel.This stop plate has its forward margin so located as to be accuratelyaligned with the forward end of slot 80 so that the wire whichoriginally projected forwardly, as shown in Figure 6, is, by the stopplate 84, brought to rest T Le desk Ze/vice.v

In principle of operation the desk device corres onds closely with thetool which has thus ar been described. Relative movement between partsis, however, differently produced in the desk device by reason of thefact that the hand supported tool al ready described makes use, inaccomplishing its purposes, of structural features whlch are peculiar tothe s stem of levers by lmeans of which the handy supported tool 1soperated.

The desk device replaces jaw 28 as previously described with anequivalent jaw member comprising a fiat base having at its forward endan anvil plate 37', and having at its rear end an arm 52 for the.support of the spool 56. The spool in this device corresponds with thatalready discusse-d but may conveniently be provided with a peculiarsupport which comprises a sheet metal clip having upstanding ears 116and 117, portions of which are pressed inwardly to provide studs 118 forthe rotatable mounting of spool 56. The base of the clip ncludes frontand rear horizontal web portions 119 which pass beneath arm 52 and anintermediate portion 120 which is pressed arcuately upwardly, whereby topermit-arm 52 to be received and frictionally engaged between webportions 12() and 119 of the clip. This arrangement is best shown inFigures 14 and 20. The clutch device 59, which is supported from arm52', may correspond exactly with the clutch device 59 previouslydescribed.

The support for the operating parts of the tool may comprise `a piece ofsheet metal bent'to form a substantially tubular connecting portion 121,spaced parallel plates 122 and 123, and outwardly turned flanges 124connected respectively with said plates and resting lat on base 115 forconnection therewith. The U-shaped plate 81 is likewise provided withoutturned fianges 125 for connection with the base member 115 but isotherwise substantially identical with the corresponding U-shaped plate81 in the hand supported tool.

The slide.

The slide 40 corresponds closely with slide 40 which has previously beendescribed. It carries a guide tube 72 corresponding to guide tube 72and, at the rear end oi said tube, a clutch device 7 3 which may beidentical with that described above. The mandrel 82 corresponds infunction, and quite generally in shape, to that above discussed,although its specific form is slightly different, as is clearly shown inFigures 15 to 1,7, inclusive.

A Sliding actuating merma.'

Vertically reciprocable in the tubular por tion 121 of the support is ajaw member corresponding functionally to jaw 26 and coinA prising atubular plunger 128 which is plugged at 129 and capped with a button 130secured to the plug by means of a screw Projecting rearwardly froin saidtube between plates 122 and 123 and rigidly connected with said tube isan arm 1755 which may take -the form ot' a plate. This arm is laterallyoffset with the vertical axis of the tube in order to leave room forother elements hereinafter to be described. Arm

carries a -cani roller 136 which is operable within a slot 1.37 in aplate 138 extending vertically from and rigidly connected with the slide40. Plate 138 is preferably disposed in the longitudinal plane whichincludes the vertical axis of plunger 128 and is, therefore,intermediate the plates 122 and 123 ot' the support. The cam groove 137,in which roller 136 is operative, is designed to provide for a limiteddegree of lost motion between plunger 128 and slide 4U. 'Io this end.the cani groove has an inclined intermediate portion, as shown inFigures 15 to 18 inclusive, and has vertical end portions. Thearrangement is such that the initial and ultimate downward movement ofthe plunger 120 will be without effect on slide 40', but theintermediate part of the plunger stroke will be communicated to theslide to produce a rearward reciprocation thereof. The upward movementof plunger 128 and a corresponding forward movement of slide 40 areproduced by a spring 139 coiled exteriorlv upon plunger 128 and confinedbetween a suitable washer 140 0n the support and a head 130 on theplunger.

Forming (lie and punch.

Plunger 128 is transversely and vertically slotted at 141 to receive theforming die 142. The forming die correspondsclosely to that previouslydescribed with the exception that itis differently actuated and is madesuhstantially rectangular in its outline in order that it may bereceived and confined against lateral displacement within the portion121 of the support. The forming die 142 is con fined againstlongitudinal displacement by the walls of slot 141. It has spaced legs87 and 86 corresponding to legs 87 and 86 of the die previouslydescribed. Legs 86 and 87 are shown in Figure 10 to be provided withvertical grooves on their inner faces corresponding to grooves 88described with reference to the hand supported tool. Leg 87 is alsoguided with reference to the iii) Ofi

U-shaped device 82 by means of the in- -wardly upset ears previouslyreferred to,

and best shown in Figure 19. Resilient pressure behind the forming dieis furnished y means of a spring 144 which is confined within plunger128. This spring performs the functions of the fiat spring 96 in theenibodiment of this invention previously described. A

The punch 0i' staple driving member 105 correspond quite closely to theelement 105, best shown in Figures 3 to 7, inclusive. Whereas element105, as previously described, was riveted to jaw 26, the present andcorrespondingelement 105 is connected with the plunger 128 by means of alongitudinally extending pin 146 through which the movement of theplunger is transmitted positively at all times to the staple drivingmembers 105. The press is reciprocablc in the grooves 88 and 88 of theforming die member 142 when the die member moves with respect to theplunger, due to the yielding of spring 144. The rearward end of pin 146extends through the wall of plunger 128 at an intermediate point in avertically extendingr slot 147, which is best shown in Figure 22. Theslot is less Wide than the diam-- eter of pin 146 in order that the pinmay find support in the wall of the plunger.

Reciprocable through slot 147 in a longitudinal direction is a slide 150which shows in plan in Figure 13 and is shown in dotted lines in Figures15 to 17, inclusive. This slide comprises a thin, flat plate notched at151 for bearing upon the upper and lower surfaces of pin 146. A linger153 is integrally formed with slide 150 and is bent at right angleslaterallv for engagement wth the cam surface 154 of the upright 138which is carried by the slide. This upright also is provided with a Hatspring 155 which, in the normal position of the parts, contacts withfinger 153 to maintain the slide 150 in its innermost position, asindicatedin Figure 15. -The longitudinal reciprocation of slide 150` isfurther restricted in both directions through the provision therein of aslot 156 which receives the projecting axis pin of cam roller 136.

The function of the slide 150 corresponds to the function of block inthe embodiment first described. In other words, slide 150, while free tomove longitudinally, can only move vertically in unison with plunger128. Its longitudinal reciprocaton carries it to and from operativecontact with the upper portion 159 of the forming die member 142. `Whenthe slide 150 is in its forwardmost position, as indicated in Figure 15,it will transmit positively the movement of plunger 128 and pin 146 tothe die member 142. W'hen the vslide 150 is in its retracted position,as indicated in Figure 17, it will no longer contact with the die member142 and the latter will be free to ride upwardly withnv the plunger 128against the compression of spring 144.

Operation.

.feeding of the wire stock will take place exactly in the manner alreadvdescribed and consequently will not be further mentioned at this point.The operating mechanism Apeculiar to this embodiment of the invention,however, will perhaps require further description.

As the plunger 128 moves downwardly it will compress the spring 139which is later torestore it to its normal or original position. Duringits initial movement the cam roller 136, which is rigidly connectedtherewith through tlie medium of arm 135, will move downwardly throughthe upper vertical portion of ycam .slot 137. In this portion of the.Clot the roller will obviously be productive of no effect upon slide40. During this period, when the slide is inoperative, the cutting andforming die 142 will be bearing, through its leg` portion 86', upon thewire to .sever therefrom a blank suitable for the staple formingoperation;

As the downward movement of plunger 128 is continued the cam roller 136will ride on to the inclined portionof slot 137 and will commence therearward reciprocation of slide 40. At the .same time legs 86 and 87 ofthe forming die member 142 will have descended pastthe upper margin ofmandrel 82 and will have commenced the operaton of forming the stapleover said mandrel. The parts will appear as indicated in Figure 16. Itwill be understood that during the operationv thus far described theforming die 142 will have been positively actuated from the plungerthrough pin 146 and slide 150. As the slide 40 moves rearwardly,however. its cam surface 154 will be acted upon the finger 153 of sllde150` whereby to draw `said sliderearwardly at the proper rate. Thearrangement is such that upon the completion of the staple formingoperation, and just about the time of the withdrawal of mandrel 82 fromthe staple, slide 150 will ride 'free of die member 142. At about thistime also the die member will contact with the paper sheets supported onanvil 37', and the plunger in its continued downward movement will beginto compress spring 144.

Relative movement is now occurring between the plunger 128 and the diemember 142, whereby the punch press which is depress ositively connectedwith the plunger, is iaving its extremity advanced toward the bottom ofthe die member whereby to expelt from grooves 88 the staple previously,formed therein. This staple will be driven throu h the sheets ormaterial to be fastened and will be clenched by anvil 37 in the manneralready described. The ultimate osition of, the parts at the time thestap e is clenched is shown in Figure 17.

Upon release of plunger 128 from manual pressure, the spring 139 will`beadequate to restore all of the parts to their normal positions, asindicated in Figure 15. Plunger 12S-will rise vertically, and the roller136 of arm 135 will act upon an opposite side of cam groove 137 to urgeslide 40 forwardly. The forming die 142 will remain in contact with theWork until the compression of spring 144 is offset by Contact of theforming die with the upper end of punch press 105.A Thereafter, theslide 150 will be restored to its operative position abo`ve forming die142 by4 means of spring 155, which will bear against finger 153'. A newlength of wire will meanwhile have been fed through tubular guide 7 inthe manner already described with reference to the hand supporteddevice, and the tool will be ready for a new paper fastening operation.

It will readily be seen that in each embodiment of this invention I haveprovided a novel and comparatively simple mechanism for the specifiedpurposes. Attention is further called to the fact that while thedimensions of the tool are kept within small compass, as is desirable ina manually operable device of this character, nevertheless anarrangement has been perfected for feeding the wire transversely of theanvil. This is important for the reason that in legal documents it isvery desirable to secure uniformity in the distance from the top of thesheets at which the staple is applied. If the staple were formedlongitudinally of the machine, the machine would have to be applied tothe sheets on a side margin thereof, and the staple might be disposed atany distance from the top of the sheets. However, in the present devicethe staple is formed transversely of the machine and it becomes possibleto utilize the depth of recess 36 as a positive guide for determiningthe location of each staple with reference to the top of the sheet.

While practically any kind or size of wire may be used in devices ofthis character, I have had particular success in the use of a hard brassfor bronze wire ranging in size from .O1 to .016. Such Wire cuts'readily under the degree of pressure which can be conveniently appliedmanually. The brass or bronze wire cuts more easily than iron or steelof like diameter and has little, if any tendency to cut or mutilate theanvil and other working parts of the device. Furtheimore, brass wirewill not rust and deface paper secured by it as might be possible in theuse of iron or steel wire.

It may be added further that if it be desired to clench the points ofthe staple in such a way that they will diverge instead of converge itis only necessary to eliminate grooves 38 in the anvil or to substitutein lieu thereof a slight convex protuberance.

I claim:

l. In a device of the character described, the combination with a frameand an anvil connected therewith, of a 'mandrel reciprocablelongitudinally of said frame to and from an operative position in spacedrelation above sai anvil, wire feeding mechanism controlled foroperation during the forward and A,rearward reciprocation of saidmandrel to and from said position, a second frame member reciprocable ina plane substantially normal with the plane of reciprocation of saidmandrel, a formingdie adapted to coact with said mandrel and connectedwith said second frame member to receive positively the initial movementthereof, a yieldable connection between said second frame member andsaid die adapted to become operative after the initial movement of saidsecond frame member, a staple drivin tool positively connected with saidsecond rame member, motion transmitting connections between said secondframe member and said mandrel and adapted to retract said mandrelsubsequent to the initial movement of the second frame member asaforesaid, and guiding means adapted to position upon said mandrel wireadvanced by said feeding means.

2. In a device of the character described, the combination with asupporting frame, of a slide reciprocable longitudinally thereof andhaving a portion provided with a platen surface adapted to support wireduring a staple forming operation, a spool rotatably supported from saidframe rearwardly of said slide, a wire clutch adapted to permit thepassage of wire in one direction and to grip the wire against itspassage in any opposite direction, said clutch being supported from saidframe between said spool and said slide, a second clutch similar to saidfirst mentioned clutch and in substantial axial alignment therewith,said second clutch being supported from said slide, and a tube mountedon said slide and reciprocable therewith and arranged to receive andguide wire issuing from said second clutch.

3. In a device of the character described. the combination With asupporting frame, of a slide reciprocable longitudinally thereof andhaving a portion provided with a platen surface adapted to support wiredurin a staple forming operation, a spool rotatatbly supported from saidframe rearwardly of said slidefa wire clutch adapted to permit thepassage of wire in one direction and .to

l, gri the wire against its passage in any opposite direction, saidclutch being supported from said frame between said spool and saidslide, a second clutch similar to said first mentioned clutch and insubstantial axial alignment therewith, said second clutch beingsupported from said slide, and a tube mounted on said slide andreciprocable therewith and arranged to receive and guide wire issuingfrom said second clutch, said tube being curved outwardly and thencearcuately inwardly to approach a direction transverse to the path ofmovement of said slide, whereby wire advanced through the interaction ofsaid clutches and passing through said tube will be guided for movementtransversely of said slide.

4. In a tool of the character described, the combination with areciprocable slide and a member disposed adjacent said slide andlaterally spaced therefrom, said member being provided with alongitudinally extending slot, of wire guiding means connected with saidslide for reciprocation therewith and directed toward said slideexternally of said member, said slot being disposed substantially at thelevel of the top of' the slide, a wire stop disposed substantiallyaxlally of said slide, said stop and slide being formed for interactionand said stop being positioned to act upon wire guided by said means.substantially at the time when said slide and said means reach theirultimate positionof reciprocation in one directiontogether with a wireforming die adapted to cooperate with said slide in the formation ofstaples from wire projecting across said slide, said die being adaptedto interact with the walls of said slot to sever lengths of wireprojecting` beyond said member across said slide.

5. In a tool of the character described, the

lcombination with a pair of members connected together for relativevertical movement, of a slide reciprocable with reference to a first ot'said members, a longitudinally slotted guide element laterally spacedfrom said slide and supported from said first member. wire feedingmechanism including means for directing wire through said slot andacross said slide, said means being reciprocable with the slide. aforming die having portions upon either slde of said y slide andpositioned above said slide to register operatively with wire therein inone position of said slide andA said'means, res1l1- ently yieldablemotion transmitting connections between a second of said members andsaid die, and positively operable motion transmitting connectionsbetween said die and said second member, together with meansautomatically rendering said last mentioned connections inoperative at apredetermined point in the relativel movement of said memers.

6. In a tool of the character described, the combination with a firstand second member having portions guided for relative vertical movement,of a forming die supported from said first. member and mcluding spacedle s directed toward said second member, ya sli e reclprocable withrespect to the second member and adapted in one position to beinterposed between said legs, a wire guiding ele' ment longitudinallyslotted at substantially the level of the top of said slide and spacedfr om said slide to receive between it and the sllde one of said legs, awire feeding means adapted to feed wire through said slot and acrosssaid slide in operative position to be acted upon by the legs of saiddie, one of the legs of said die being adapted to interact with thewalls of the slot of said element to sever blanks from lengths of wireprojecting from said element.

7 In a tool of the character described, the combination with a first andsecond member having portions guided for relative vertical movement, ofa forming die supported from said first member and including spaced legsdirected toward said second member, a slide reciprocable with respect tothe second member and adapted in one position to be interposed betweensaid legs, a wire guiding element longitudinally slotted atsubstantially the level of the top of said slide and spaced from saidslide to receive between it and the slide one of the legs, a wirevfeeding means adapted to lfeed wire through said slot and across saidslide in operative position to be acted Iupon by the legs of said die,one of the legs of said die being adapted to inter-- act with the wallsof the slot of said element to sever blanks from lengths of wire projecting from said element, and said legs being provided at their lowerextremities with registering transverse grooves adapted firmly to engageire carried upon said slide.

8. In a device of the character described, the combination with a firstand second member having portions guided for relative vertical movement,of a staple forming die resiliently supported from said tirst member andincluding laterally spaced leg portions, means automatically operativefor providing positive support for saidguide from said first memberduring the initial relative movement of said members toward each otherand for removing such positive support at a predetermined point duringsaid movement, a slide longitudinally reciprocable with respect to thesecond of said members and adapted adjacent the limit of reciprocationin one direction to be interposed between the legs of said die, andmeans controlled by the relative movement of said members for feedinglengths of wire across said slide in an operative osition to be actedupon by said die, said means comprising motion transmitting connectionsbetween said slide and said first member, a source of wire su ply, awire advancing mechanism, and guit ing mechanism supported 1n part fromsaid slide and reciprocable therewith.

9. In a device of the character described, the combination with a firstmember and a second member having portions guided for relative verticalmovement, a die member resiliently connected with said first member formovement therewith and provided with spaced leg portion, means providinga positive motion transmitting connection between said first member andsaid die during a portion of the movement of said members toward eachother and adapted automatically to relieve such positive connection at apredetermined point in said movement, a slide reciprocable withreference to said second member and adapted adjacent its extremeposition of reciprocation in one direction to extend between the legportions of said die, wire guiding means adapted to direct wiretransversely of said slide to an operative position beneath said legs,said means being supported in part from said slide for movementtherewith and in part stationary with respect to said member, a stoprelatively fixed with respect to said member and adapted to co-operatewith said means to limit said wire to an ultimate position substantiallyexactly transverse with respect to said slide, and means operativelyconnecting said slide with said first member 'to receive motiontherefrom during the movement of said members to and from each other.

10. In a tool of the character described, the combination with first andsecond members having portions guided for relative linear movement, of adie resiliently supported from said first member and includingweb-connected laterally spaced leg portions provided on their innerfaces with longitudinally extending grooves, driving press guides insaid grooves and terminating at a oint spaced above the extremities ofsaid eg portions, said press being positively connected with said firstmember, a wire supporting slide reciprocable with reference to saidsecond member and adapted at one extremity of its reciprocable movementto be received between the legs of said die, said legs at the maximumseparation of said members being spaced above said slide, wire feedingand positioning means adapted for automatic operation during the to andfro movement of said members and adapted to position lengths of wire onsaid slide operatively beneath the legs of said die, motion transmittingconnections for the automatic retraction of said slide during themovement of said members toward each other, and a second slidereciprocable with reference to the combination with first and secondmembers having portions guided for relative movement t'o and from eachother, of a die resiliently yieldable with reference to said firstmember and comprising webconnected leg portions formed withlongitudinally extending grooves in their inner surfaces, a drivingpress guided in said grooves for movement relative to said die andconnected positively with said first member` automatically operablemeans for initially transmitting positively to said die the movement ofsaid first member and for subsequently releasing said die for resilientyielding movement with respect to said first member, a slidereciprocable with reference to said second member and adapted adjacentone extreme of its reciprocable movement to be received between andbeneath the legs of said die, the extremities of such legs beinginitially above the level of said slide and below the lower extremity ofsaid press, wire feeding mechanism controlled by the movement of saidslide, and wire guiding means adapted to position advancing lengths ofwire transversely of said slide and operatively beneath the legs of saiddie, a portion of said means being formed for interaction with a leg ofsaid die, whereby to sever blanks from the wire advanced by said feedingmechanism.

12. In a tool of the character described, the combination with first andsecond members having portions guided for relative movement to and fromeach other, of a die resiliently yieldable with reference to said firstmember and comprising web-connected leg portions formed withlongitudinally extending grooves in their inner surfaces, a drivingpress guided in said grooves for movement relative to said die andconnected positively with said first member, automatically operablemeans for initially transmitting positively to said die the movement ofsaid first member and for subsequently releasing said die for resilientyielding movement with respect to said first member, a slidereciprocable with reference to said second member and adapted adjacentone eX- treme of its reciprocable movement to be received between andbeneath the legs of said die. the extremities of such legs beininitially above the level of said slide and elow the lower extremity ofsaid press, motion transmitting connections adapted automatically toactuate said slide during the relative movement of said members towardand from each other, a source of wire supply carried by said secondmember, a wire engaging clutch connected with said member, a .sccondwire engaging clutch connected with said slide and adapted forco-operation with said first clutch to advance predetermined lengths ofwire during the rceiprocation of said slide, a wire guiding deviceadapted to receive wire from said second mentioned clutch and connectedwith said slide for translation therewith, and wire positioning meansincluding a vertically disposed plate laterally spaced from said slideto receive between it and the slidea leg of said die and provided with ahorizontal longitudinally extending slot, said Wire being directed bysaid means through said slot and transversely across said die, wherebythe walls of said slot are adapted to co-operate with the adjacent legof a die in the severing of blanks from the Wire advanced and positionedas aforesaid.

13. In a device of the character described, the combination with a pairof pivoted manually engageable levers, of upper and lower memberspivotally connected with each of said levers and guided with referenceto said levers for linear movement to and from each ether` a die memberreciprocable with refer-` forming operation, work supporting meansconnected with one of said members, and means for driving through Worksupported by said means a staple so formed, all of said means beingautomatically operable upon the clasp and release of said handle leversby an operator.

14. In a device of the character described, the combination with a toolframe providing a-.longitudinally opening recess adapted to receive thework, of a platen longitudinally reciprocable in said frame, feedingmeans adapted to advance wire longitudinally of said frame, and guidingmeans for said Wire arranged to direct it transversely of said platenand of said recess,.said guide means being supported by said platen andmovable therewith.

15. In a device of the character described, the combination With a framemember providing a longitudinally opening recess adapted to receivework, of a tubular wire guide having a portion extending longitudinallyof said frame member in the direction of said recess, and being curvedtoward an ultimate direction transverse with respect to said recess,said guide being mounted for reciprocation with respect to said framemember.

16. In a device of the character described, the combination with a framemember providing an anvil and a slide reciprocable longitudinally ofsaid frame member toward and away from said anvil, said slide providinga mandrel: of a wire advancing clutch supported from said slide; and aVguide associated at one end with said clutch and supported for movementwith said slide, said guide beino' adapted to receive Wire disposedlongitudinally of said frame member and to direct such wire to anultimate position transverse with respect to said frame member and saidanvil.

SVEN SVENSON.

